1/* 2 * Copyright (C) 2011 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef JSBoundFunction_h 27#define JSBoundFunction_h 28 29#include "JSFunction.h" 30 31namespace JSC { 32 33EncodedJSValue JSC_HOST_CALL boundFunctionCall(ExecState*); 34EncodedJSValue JSC_HOST_CALL boundFunctionConstruct(ExecState*); 35 36class JSBoundFunction : public JSFunction { 37public: 38 typedef JSFunction Base; 39 40 static JSBoundFunction* create(ExecState*, JSGlobalObject*, JSObject* targetFunction, JSValue boundThis, JSValue boundArgs, int, const String&); 41 42 static void destroy(JSCell*); 43 44 static bool customHasInstance(JSObject*, ExecState*, JSValue); 45 46 JSObject* targetFunction() { return m_targetFunction.get(); } 47 JSValue boundThis() { return m_boundThis.get(); } 48 JSValue boundArgs() { return m_boundArgs.get(); } 49 50 static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype) 51 { 52 ASSERT(globalObject); 53 return Structure::create(vm, globalObject, prototype, TypeInfo(JSFunctionType, StructureFlags), &s_info); 54 } 55 56 static const ClassInfo s_info; 57 58protected: 59 const static unsigned StructureFlags = OverridesHasInstance | OverridesVisitChildren | Base::StructureFlags; 60 61 static void visitChildren(JSCell*, SlotVisitor&); 62 63private: 64 JSBoundFunction(ExecState*, JSGlobalObject*, Structure*, JSObject* targetFunction, JSValue boundThis, JSValue boundArgs); 65 66 void finishCreation(ExecState*, NativeExecutable*, int, const String&); 67 68 WriteBarrier<JSObject> m_targetFunction; 69 WriteBarrier<Unknown> m_boundThis; 70 WriteBarrier<Unknown> m_boundArgs; 71}; 72 73} // namespace JSC 74 75#endif // JSFunction_h 76